JP2020166058A - 表示装置 - Google Patents
表示装置 Download PDFInfo
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- JP2020166058A JP2020166058A JP2019064551A JP2019064551A JP2020166058A JP 2020166058 A JP2020166058 A JP 2020166058A JP 2019064551 A JP2019064551 A JP 2019064551A JP 2019064551 A JP2019064551 A JP 2019064551A JP 2020166058 A JP2020166058 A JP 2020166058A
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- light emitting
- emitting element
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- 229910052751 metal Inorganic materials 0.000 description 4
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- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
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- 230000035945 sensitivity Effects 0.000 description 3
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
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- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 241000750042 Vini Species 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
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- FTWRSWRBSVXQPI-UHFFFAOYSA-N alumanylidynearsane;gallanylidynearsane Chemical compound [As]#[Al].[As]#[Ga] FTWRSWRBSVXQPI-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
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- 229920005591 polysilicon Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
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- 239000010936 titanium Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910010038 TiAl Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- AJGDITRVXRPLBY-UHFFFAOYSA-N aluminum indium Chemical compound [Al].[In] AJGDITRVXRPLBY-UHFFFAOYSA-N 0.000 description 1
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- 229910052733 gallium Inorganic materials 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
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- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission
- H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission in a repetitive configuration, e.g. LED bars
- H01L27/156—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission in a repetitive configuration, e.g. LED bars two-dimensional arrays
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- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
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- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
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- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/36—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the electrodes
- H01L33/38—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the electrodes with a particular shape
- H01L33/382—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the electrodes with a particular shape the electrode extending partially in or entirely through the semiconductor body
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- G06F2203/04108—Touchless 2D- digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface without distance measurement in the Z direction
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- H01L25/16—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits
- H01L25/167—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits comprising optoelectronic devices, e.g. LED, photodiodes
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- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
Abstract
Description
図1は、第1実施形態に係る表示装置を模式的に示す平面図である。図1に示すように、表示装置1は、アレイ基板2と、画素群Pixと、駆動回路12と、駆動IC(Integrated Circuit)210と、カソード配線14と、を含む。アレイ基板2は、各画素群Pixを駆動するための駆動回路基板であり、バックプレーン又はアクティブマトリックス基板とも呼ばれる。アレイ基板2は、基板10、複数のトランジスタ、複数の容量及び各種配線等を有する。
図9は、第2実施形態に係る表示装置において、第2無機発光素子を駆動する画素回路を示す回路図である。なお、以下の説明では、上述した実施形態で説明したものと同じ構成要素には同一の符号を付して重複する説明は省略する。
図13は、第3実施形態に係る表示装置を示す断面図である。図13に示すように、第3実施形態の表示装置1Bにおいて、第2発光素子5IRの上側に集光レンズ81が設けられる。より具体的には、集光レンズ81は、カソード電極22及び黒色部材23の上側において、第2発光素子5IRのカソード端子53−IRと重なる領域に設けられ、カソード電極22の第1開口OP1及び黒色部材23の第2開口OP2を覆って設けられる。集光レンズ81の下面は、第2開口OP2の周縁部分で黒色部材23およびカソード電極22−IRおよびカソード端子53−IRに接する。接着層85は、集光レンズ81を覆ってカソード電極22−IR及び黒色部材23の上に設けられる。
図14は、第4実施形態に係る表示装置を示す断面図である。図14に示すように、第4実施形態の表示装置1Cは、さらに、第2検出装置6を備える。第2検出装置6は、カソード電極22及び黒色部材23の上に、接着層84を介して接着される。また、第2検出装置6の上には、接着層86を介して円偏光板7が接着される。つまり、第2検出装置6は、第1発光素子5VL及び第2発光素子5IRの上側に設けられ、第3方向Dzにおいて、アレイ基板2、第1発光素子5VL及び第2発光素子5IR、第2検出装置6、円偏光板7の順に積層される。
図15は、第5実施形態に係る表示装置の、複数の画素群を示す平面図である。図15に示すように、第5実施形態の表示装置1Dは、複数の光電変換素子PDを有する。複数の光電変換素子PDは、それぞれに照射された赤外光領域の第2光に応じた信号を出力する。複数の光電変換素子PDは、例えば、SiフォトダイオードやCMOSイメージセンサである。複数の光電変換素子PDは、例えば、図6に示した画素回路PIC−IRSと同様の回路で駆動され、第2光に応じた信号を検出回路56に出力する。
2 アレイ基板
5 発光素子
5VL、5VL−R、5VL−G、5VL−B 第1発光素子
5IR 第2発光素子
5IR−L 光源用の第2発光素子
5IR−S 検出用の第2発光素子
6 第2検出装置
7 円偏光板
10 基板
12 駆動回路
20 画素
21、21−VL、21−IRL、21−IRS アノード電極
22、22−VL、22−IRL、22−IRS カソード電極
23 黒色部材
51 半導体層
52、52−VL、52−IRL、52−IRS アノード端子
53、53−VL、53−IRL、53−IRS カソード端子
60 センサ基板
81 集光レンズ
82 構造体
L1−VL、L1−IRL、L1−IRS アノード電源線
L10−VL、L10−IRL、L10−IRS カソード電源線
OP1 第1開口
OP2 第2開口
Pix 画素群
Rx 検出電極
SW1 第1スイッチ素子
SW2 第2スイッチ素子
Tx 駆動電極
PD 光電変換素子
Claims (14)
- 基板と、
前記基板に設けられた複数の画素と、
複数の前記画素の各々に設けられた複数の第1無機発光素子及び複数の第2無機発光素子と、を有し、
前記第1無機発光素子は、可視光領域の第1光を出射し、
前記第2無機発光素子は、赤外光領域の第2光を出射する
表示装置。 - 前記第1無機発光素子及び前記第2無機発光素子は、それぞれアノード端子とカソード端子とを有し、
複数の前記第2無機発光素子のうち、前記第2光を出射する光源用の第2無機発光素子の前記アノード端子には、第1電位が供給され、
前記光源用の第2無機発光素子の前記カソード端子には、前記第1電位よりも低い電位を有する第2電位が供給される
請求項1に記載の表示装置。 - 複数の前記第2無機発光素子のうち、照射された前記第2光に応じた信号を出力する検出用の第2無機発光素子の前記アノード端子には、前記第2電位が供給され、
前記検出用の第2無機発光素子の前記カソード端子には、前記第1電位が供給される
請求項2に記載の表示装置。 - 前記第1無機発光素子及び前記第2無機発光素子は、それぞれアノード端子とカソード端子とを有し、
前記第2無機発光素子に第1電位を供給する第1電源線と、
前記第2無機発光素子に前記第1電位よりも低い電位を有する第2電位を供給する第2電源線と、
前記第1電源線及び前記第2電源線と、前記第2無機発光素子の前記アノード端子との接続を切り換える第1スイッチ素子と、
前記第1電源線及び前記第2電源線と、前記第2無機発光素子の前記カソード端子との接続を切り換える第2スイッチ素子と、を有する
請求項1に記載の表示装置。 - 前記第1スイッチ素子及び前記第2スイッチ素子の動作により、
単一の前記第2無機発光素子は、前記第2光を出射する光源用の第2無機発光素子と、照射された前記第2光に応じた信号を出力する検出用の第2無機発光素子とに、時分割で切り換えられる
請求項4に記載の表示装置。 - 前記光源用の第2無機発光素子及び前記検出用の第2無機発光素子の数が異なる第1検出モードと第2検出モードと、を有し、
前記第1検出モードにおいて、前記光源用の第2無機発光素子と前記検出用の第2無機発光素子とが交互に配列され、
前記第2検出モードにおいて、前記光源用の第2無機発光素子の数に対する前記検出用の第2無機発光素子の数の割合が、前記第1検出モードよりも大きい
請求項5に記載の表示装置。 - 前記検出用の第2無機発光素子に照射された光に応じて出力される信号を検出する検出回路を有する
請求項3又は請求項5に記載の表示装置。 - 複数の前記第1無機発光素子及び複数の前記第2無機発光素子の間に設けられ、複数の前記第1無機発光素子及び複数の前記第2無機発光素子のそれぞれの少なくとも側面を覆う素子絶縁膜と、
複数の前記第1無機発光素子、複数の前記第2無機発光素子及び前記素子絶縁膜を覆って設けられ、複数の前記第1無機発光素子及び複数の前記第2無機発光素子に接続されるカソード電極と、を有し、
前記カソード電極は、複数の前記第2無機発光素子と重なる領域に第1開口が設けられる
請求項1から請求項7のいずれか1項に記載の表示装置。 - 前記カソード電極の上には、黒色部材が設けられ、
前記黒色部材は、前記第1開口と重なる領域に第2開口を有する
請求項8に記載の表示装置。 - 前記基板に垂直な方向からの平面視で、前記第2開口の面積は、前記第1開口の面積よりも大きい
請求項9に記載の表示装置。 - 前記第2無機発光素子の上側に集光レンズが設けられる
請求項1から請求項10のいずれか1項に記載の表示装置。 - 前記集光レンズは、複数の前記第1無機発光素子及び複数の前記第2無機発光素子に接続されるカソード電極の上側に設けられ、
前記第1無機発光素子の上側であって、前記第1無機発光素子と重ならない領域において、前記集光レンズと同一の高さを有する構造体が設けられる
請求項11に記載の表示装置。 - 複数の前記第1無機発光素子及び複数の前記第2無機発光素子の上側に設けられ、複数の電極を有する静電容量方式の検出装置を有し、
複数の前記電極は、前記第2無機発光素子と重ならない領域に設けられる
請求項1から請求項12のいずれか1項に記載の表示装置。 - さらに、照射された前記第2光に応じた信号を出力する複数の光電変換素子を有する
請求項1に記載の表示装置。
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